\begin{tikzpicture}
    \pgfmathsetmacro{\R}{2}
    \pgfmathsetmacro{\r}{1}

    \tkzDefPoints{0/0/O_1, 0/-\r/O_2}
    \tkzDefPoint(270:\R){A}
    \tkzDefPoint(235:\R){C}
    \tkzInterLC[common=O_1](O_1,C)(O_2,A)  \tkzGetFirstPoint{B}

    \tkzDrawCircle[thick](O_1,A)
    \tkzDrawCircle[thick](O_2,A)
    \tkzDrawPoints(O_2)
    \tkzDrawSegments(O_1,A  O_1,C)
    \tkzLabelPoints[above](O_1)
    \tkzLabelPoints[right](O_2)
    \tkzAutoLabelPoints[center=O_1, centered, dist= .15](A,C)
    \tkzLabelPoints[left, yshift=.3em](B)
\end{tikzpicture}

